This receiver for infrared remote control was found in the Philips Databook of 1990, The circuit operates with 5 V and is intended for receiving data.
The configuration shown in the figure has been requested a lot by many readers who need a circuit...
This timer uses common components today. It activates a relay after intervals that can be adjusted up...
We found this circuit in an English magazine from 1980. The circuit can be easily assembled even...